Recently, and most probably due to the LBA I got one...
I am quite new at it and have a question to those who owns one.

I found that the lens, sometimes, has difficulty to focus where I want. This mainly in the 5 points mode. If I choose the spot on option it's fine so far.
Example if I shoot a bird on a tree that is beyond various branches sometimes in the 5 points mode the focus isn't quite right.
Often, the red dot (which I trust shows the exact focus point) is on the right or the left side, also sometime up, sometime down but never or not too often spot on.
Sometimes/rarely, it's all blurred. I haven't had that with any of my signature lenses

Also be aware that the red AF focus points are a lot smaller then the area covered by the AF sensors. For instance, the center AF is a cross-type sensor with the + almost the same height/width as the Spot Meter circle. The other + sensors are similiarly sized.

Trying to pick and choose edges to focus on that overlap objects at different distances can get quite annoying...even without the camera trying to decide by choosing between numerous focus areas. As mentioned it is often easier to pick one sensor and compose around it.

So apparently its normal.
I was just asking this because with none of the lens of my signature I had this kind of behaviour.
There all spot on while on the 5 points setting.
It might be due to the fact that the 200mm is much larger ?

I recommend that you ditch the 5 points focus and use SINGLE in the case of this lens. It is likely that your subject will be some distance from you and you can point at what you want to focus on and then re-frame afterwards. It's unlikely that focus will change due to minute camera movements in this situation. Just make sure that you keep your finger depressing the shutter button 1/2 way whilst framing or the camera will refocus (if the shutter button is set to allow AF of course)

No, as Giklab points out, it's the nature of the subject -- with a bird amongst branches there are too many potential focus targets. Take Bossa's suggestion and make a user mode with those settings so you can easily change back and forth. Also consider disabling the AF with the shutter release button in that mode, using the AF button instead.

So apparently its normal.
I was just asking this because with none of the lens of my signature I had this kind of behaviour.
There all spot on while on the 5 points setting.
It might be due to the fact that the 200mm is much larger ?

Thank you all for you're feedbacks

The issue increases with longer lenses because they have shallower depth of field. The intelligence ??? in the focusing system hunts for
a location where all the sensor spots are in focus---but no such place exists due to the shallow depth of field so it hunts for a while looking for what doesn't exist and then gives up. Longer and faster lenses need to be used in the spot mode.

I agree, use single spot mode. I use a 200mm Vivitar daily and have no trouble. Mine is not autofocus, but the focus confirmation is very accurate set for single center spot, and when I was using the AF kit lens single seemed to work a lot better too. Using 5 or more it would "hunt" forever, using single it never gave me any trouble. So I don't even consider multiple spots any more, even for my point and shoot cameras. I keep everything set on single center spot.

Almost two weeks that I own this lens, lots of pictures (training phase) done, but one more question for the road...

Sometimes, rarelly, when I aim to another spot than the last shot, I can hear the AF / SDM hunts for the good focus but stop somewhere giving me an all blurred screen. I have to re press half way the button and it's then spot on.